1
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Patel A, Goswami S, Hazarika G, Sivaprakasam S, Bhattacharjee S, Manna D. Sulfonium-Cross-Linked Hyaluronic Acid-Based Self-Healing Hydrogel: Stimuli-Responsive Drug Carrier with Inherent Antibacterial Activity to Counteract Antibiotic-Resistant Bacteria. Adv Healthc Mater 2024; 13:e2302790. [PMID: 37909063 DOI: 10.1002/adhm.202302790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/22/2023] [Indexed: 11/02/2023]
Abstract
Augmentation of the activity of Food and Drug Administration-approved antibiotics by an adjuvant or antibiotic carrier is considered one of the promising strategies to fight against antibiotic-resistant bacteria. This study reports the development of sulfonium-cross-linked hyaluronic acid (HA)-based polymer (HA-SS-HA) as an inherent antimicrobial agent and antibiotic carrier. The HA-SS-HA polymer offers the potential for encapsulating various classes of antibiotics and accomplishing a stimuli-responsive release profile in the presence of hyaluronidase produced by bacterial cells within their extracellular environment. Systematic antibacterial studies reveal that the HA-SS-HA-encapsulated antibiotics (vancomycin, amoxicillin, and tetracycline) restore its activity against the antibiotic-resistant bacterial cells methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE), and Pseudomonas aeruginosa. The HA-SS-HA gel shows robust efficacy in eradicating the mature biofilm of Staphylococcus aureus (S. aureus). The membrane-disrupting activity reveals that HA-SS-HA can also counteract the antibiotic resistance mechanism of the bacterial cells. The in vivo studies reveal excellent wound-healing activity of HA-SS-HA in albino laboratory-bred (BALB/c) mice. The outcome of additional antibacterial studies reveals that antibiotics-encapsulated HA-SS-HA hydrogel can effectively combat Gram-negative, Gram-positive, and antibiotic-resistant bacterial strains. Therefore, revitalizing the activity of commercial antibiotics by HA-SS-HA can be considered a valuable and economically effective strategy to fight against antibiotic-resistant bacteria.
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Affiliation(s)
- Anjali Patel
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Sanghamitra Goswami
- Department of Molecular Biology and Bioinformatics, Tripura University (A Central University), Agartala, Tripura, 799022, India
| | - Gunanka Hazarika
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Senthilkumar Sivaprakasam
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Surajit Bhattacharjee
- Department of Molecular Biology and Bioinformatics, Tripura University (A Central University), Agartala, Tripura, 799022, India
| | - Debasis Manna
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
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2
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Das S, Karn R, Kumar M, Srimayee S, Manna D. A chloride-responsive molecular switch: driving ion transport and empowering antibacterial properties. Org Biomol Chem 2023; 22:114-119. [PMID: 38050426 DOI: 10.1039/d3ob01826a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
A molecular switch was developed to recognize and transport Cl- across lipid bilayers. The XRD-crystal structure and NOESY NMR spectra of a potent 4-aminoquinazoline analogue confirmed Cl--induced conformation changes. Systematic biophysical studies revealed that the quinazoline moiety forms cooperative interactions of H+ and Cl- ions with the thiourea moiety, resulting in the transport of H+/Cl- across the membranes. A pH-dependent analysis revealed that the transport of Cl- by the potent compound increased in an acidic environment. The potent compound could also transport H+/Cl- across Gram-positive bacteria, leading to antibacterial activities.
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Affiliation(s)
- Sribash Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India.
| | - Rama Karn
- Centre for Environment, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Mohit Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India.
| | - Soumya Srimayee
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India.
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India.
- Centre for Environment, Indian Institute of Technology Guwahati, Assam-781039, India
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3
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Prusty BM, Karn R, Patel A, Mazumder P, Kumar S, Manna D. Stimuli-responsive assembly and disassembly of anionic suprasomes with tunable antibacterial activity. Chem Commun (Camb) 2023; 59:10624-10627. [PMID: 37578258 DOI: 10.1039/d3cc02729e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Host-guest complexation-based suprasomes successfully deliver benzimidazolium amphiphiles. β-CD and Zn2+ or an acidic environment act as the stimuli for the assembly and disassembly of suprasomes. The supramolecular nanomedicine developed by encapsulating tetracycline showed strong and tunable antibacterial activity and holds potential for the next-generation vesicle-based drug delivery system.
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Affiliation(s)
- Biswa Mohan Prusty
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India.
| | - Rama Karn
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Anjali Patel
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Priyanka Mazumder
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Sachin Kumar
- Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India.
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam-781039, India
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4
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Dey S, Patel A, Haloi N, Srimayee S, Paul S, Barik GK, Akhtar N, Shaw D, Hazarika G, Prusty BM, Kumar M, Santra MK, Tajkhorshid E, Bhattacharjee S, Manna D. Quinoline Thiourea-Based Zinc Ionophores with Antibacterial Activity. J Med Chem 2023; 66:11078-11093. [PMID: 37466499 DOI: 10.1021/acs.jmedchem.3c00368] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
The increasing resistance of bacteria to commercially available antibiotics threatens patient safety in healthcare settings. Perturbation of ion homeostasis has emerged as a potential therapeutic strategy to fight against antibacterial resistance and other channelopathies. This study reports the development of 8-aminoquinoline (QN) derivatives and their transmembrane Zn2+ transport activities. Our findings showed that a potent QN-based Zn2+ transporter exhibits promising antibacterial properties against Gram-positive bacteria with reduced hemolytic activity and cytotoxicity to mammalian cells. Furthermore, this combination showed excellent in vivo efficacy against Staphylococcus aureus. Interestingly, this combination prevented bacterial resistance and restored susceptibility of gentamicin and methicillin-resistant S. aureus to commercially available β-lactam and other antibiotics that had lost their activity against the drug-resistant bacterial strain. Our findings suggest that the transmembrane transport of Zn2+ by QN derivatives could be a promising strategy to combat bacterial infections and restore the activity of other antibiotics.
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Affiliation(s)
- Subhasis Dey
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Anjali Patel
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Nandan Haloi
- Theoretical and Computational Biophysics Group, NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, and Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Soumya Srimayee
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Suman Paul
- Department of Molecular Biology and Bioinformatics, Tripura University (A Central University), Suryamaninagar, Tripura 799022, India
| | | | - Nasim Akhtar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Dipanjan Shaw
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Gunanka Hazarika
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Biswa Mohan Prusty
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Mohit Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | | | - Emad Tajkhorshid
- Theoretical and Computational Biophysics Group, NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, and Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Surajit Bhattacharjee
- Department of Molecular Biology and Bioinformatics, Tripura University (A Central University), Suryamaninagar, Tripura 799022, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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5
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Mavani A, Ray D, Aswal VK, Bhattacharyya J. Application of Drug Aggregation to Solubilize Antimicrobial Compound and Enhancing its Bioavailability. Appl Biochem Biotechnol 2022; 195:3206-3216. [PMID: 36576656 DOI: 10.1007/s12010-022-04298-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2022] [Indexed: 12/29/2022]
Abstract
With the progress and advancement in discovery of novel antimicrobial drugs, efficient solubility plays an important component for a drug to express its out-turn effectively. A biocompatible neutral/non-ionic surfactant, Triton X-100 (Tx-100), was successfully employed to solubilize an antibiotic drug, sulfamethazine (SMZ), through micellization process. The association process of Tx-100 toward SMZ was confirmed through the characteristic spectral change in absorption and emission spectroscopy. The morphological behavior of the complex was studied from small angle neutron scattering (SANS). Changes in size(s) and charge(s) of the micelles were monitored using zeta (z) potential technique. This present study emphasized the molecular mechanism and characteristics of Tx-100 as an effective drug solubilizing and carrier agent. Thus, the drug-loaded micellar system can enhance cellular uptake and increase the antibacterial effects of drugs in the biological system(s). Schematic illustration of drug-surfactant micelle formation and target release of drug at the targeted site.
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Affiliation(s)
- A Mavani
- Department of Chemistry, National Institute of Technology Nagaland, Chumukedima, Dimapur, Nagaland, 797103, India
| | - Debes Ray
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Vinod K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Jhimli Bhattacharyya
- Department of Chemistry, National Institute of Technology Nagaland, Chumukedima, Dimapur, Nagaland, 797103, India.
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6
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Dey S, Sen P, Patel A, Prusty BM, Ghosh SS, Manna D. A photo-responsive fluorescent amphiphile for target-specific and image-guided drug delivery applications. Org Biomol Chem 2022; 20:7803-7813. [PMID: 36156635 DOI: 10.1039/d2ob01332k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multifunctional drug delivery systems are the centerpiece of effective chemotherapeutic strategies. Herein, we report the synthesis of an acetazolamide-linked cyanine-3-based NIR-responsive fluorescent macrocyclic amphiphile that self-assembled into spherical nanostructures in the aqueous medium via a J-aggregation pattern. The amphiphile shows various favorable properties of lipids. The photocleavage of the strained dioxacycloundecine ring induces spherical to nanotubular self-assembly with concomitant release of an encapsulated anticancer drug, doxorubicin (Dox), in a controlled manner. The CA-IX targeted amphiphile also showed lower cytotoxicity, effective cellular uptake, and Dox delivery to the model carcinoma cells.
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Affiliation(s)
- Subhasis Dey
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India.
| | - Plaboni Sen
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Anjali Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India. .,Centre for the Environment, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Biswa Mohan Prusty
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India.
| | - Siddhartha Sankar Ghosh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam-781039, India.
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7
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Mavani A, Ovung A, Luikham S, Suresh Kumar G, Das A, Ray D, Aswal VK, Bhattacharyya J. Biophysical and molecular modeling evidences for the binding of sulfa molecules with hemoglobin. J Biomol Struct Dyn 2022; 41:3779-3790. [PMID: 35380096 DOI: 10.1080/07391102.2022.2057358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The molecular mechanism of the heme protein, hemoglobin (Hb) interaction with sulfa molecule, sulfadiazine (SDZ) has been investigated through spectroscopic, neutron scattering and molecular modeling techniques. Absorption and emission spectroscopic studies showed that SDZ molecules were bound to Hb protein, non-cooperatively. The binding affinityof SDZ-Hb complex at standard experimental condition was evaluated to be around (4.2 ± 0.07) ×104, M-1with 1:1 stoichiometry. Drug induced structural perturbation of the 3 D protein moiety was confirmed through circular dichroism (CD), synchronous fluorescence and small angle neutron scattering methods. From the temperature dependent spectrofluorometric studies, the negative standard molar Gibbs energy change suggested the spontaneity of the reaction. The negative enthalpy and positive entropy change(s) indicated towards the involvement of both electrostatic and hydrophobic forces during the association process. Salt dependent fluorescence study revealed major contributions from non-poly-electrolytic forces. Molecular modeling studies determined the probable binding sites, types of interaction involved and the conformational alteration of the compactness of the Hb structure upon interaction with SDZ molecule. Overall, the study provides detailed insights into the binding mechanism of SDZ antibiotics to Hb protein.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- A. Mavani
- Department of Chemistry, National Institute of Technology Nagaland, Dimapur, Nagaland, India
| | - Aben Ovung
- Department of Chemistry, National Institute of Technology Nagaland, Dimapur, Nagaland, India
| | - Soching Luikham
- Department of Chemistry, National Institute of Technology Nagaland, Dimapur, Nagaland, India
| | - Gopinatha Suresh Kumar
- Biophysical Chemistry Laboratory, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Abhi Das
- Biophysical Chemistry Laboratory, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Debes Ray
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Vinod K. Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Jhimli Bhattacharyya
- Department of Chemistry, National Institute of Technology Nagaland, Dimapur, Nagaland, India
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8
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Biswas S, Datta LP, Kumar Das T. A bioinspired stimuli-responsive amino acid-based antibacterial drug delivery system in cancer therapy. NEW J CHEM 2022. [DOI: 10.1039/d2nj00815g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Design of tyrosine based stimuli responsive antibacterial drug delivery system with potential application in cancer therapy.
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Affiliation(s)
- Subharanjan Biswas
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, Nadia - 741235, Nadia, West Bengal, India
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St Quentin en Yvelines, Université Paris Saclay, 45 avenue des Etats-Unis, Versailles 78035, France
| | - Lakshmi Priya Datta
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, Nadia - 741235, Nadia, West Bengal, India
| | - Tapan Kumar Das
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, Nadia - 741235, Nadia, West Bengal, India
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9
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Qualls ML, Sagar R, Lou J, Best MD. Demolish and Rebuild: Controlling Lipid Self-Assembly toward Triggered Release and Artificial Cells. J Phys Chem B 2021; 125:12918-12933. [PMID: 34792362 DOI: 10.1021/acs.jpcb.1c07406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The ability to modulate the structures of lipid membranes, predicated on our nuanced understanding of the properties that drive and alter lipid self-assembly, has opened up many exciting biological applications. In this Perspective, we focus on two endeavors in which the same principles are invoked to achieve completely opposite results. On one hand, controlled liposome decomposition enables triggered release of encapsulated cargo through the development of synthetic lipid switches that perturb lipid packing in the presence of disease-associated stimuli. In particular, recent approaches have utilized artificial lipid switches designed to undergo major conformational changes in response to a range of target conditions. On the other end of the spectrum, the ability to drive the in situ formation of lipid bilayer membranes from soluble precursors is an important component in the establishment of artificial cells. This work has culminated in chemoenzymatic strategies that enable lipid manufacturing from simple components. Herein, we describe recent advancements in these two unique undertakings that are linked by their reliance on common principles of lipid self-assembly.
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Affiliation(s)
- Megan L Qualls
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Ruhani Sagar
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Jinchao Lou
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Michael D Best
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
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10
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Singh B, Shukla N, Kim J, Kim K, Park MH. Stimuli-Responsive Nanofibers Containing Gold Nanorods for On-Demand Drug Delivery Platforms. Pharmaceutics 2021; 13:1319. [PMID: 34452280 PMCID: PMC8400774 DOI: 10.3390/pharmaceutics13081319] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/18/2021] [Accepted: 08/18/2021] [Indexed: 01/01/2023] Open
Abstract
On-demand drug delivery systems using nanofibers have attracted significant attention owing to their controllable properties for drug release through external stimuli. Near-infrared (NIR)-responsive nanofibers provide a platform where the drug release profile can be achieved by the on-demand supply of drugs at a desired dose for cancer therapy. Nanomaterials such as gold nanorods (GNRs) exhibit absorbance in the NIR range, and in response to NIR irradiation, they generate heat as a result of a plasmon resonance effect. In this study, we designed poly (N-isopropylacrylamide) (PNIPAM) composite nanofibers containing GNRs. PNIPAM is a heat-reactive polymer that provides a swelling and deswelling property to the nanofibers. Electrospun nanofibers have a large surface-area-to-volume ratio, which is used to effectively deliver large quantities of drugs. In this platform, both hydrophilic and hydrophobic drugs can be introduced and manipulated. On-demand drug delivery systems were obtained through stimuli-responsive nanofibers containing GNRs and PNIPAM. Upon NIR irradiation, the heat generated by the GNRs ensures shrinking of the nanofibers owing to the thermal response of PNIPAM, thereby resulting in a controlled drug release. The versatility of the light-responsive nanofibers as a drug delivery platform was confirmed in cell studies, indicating the advantages of the swelling and deswelling property of the nanofibers and on-off drug release behavior with good biocompatibility. In addition, the system has potential for the combination of chemotherapy with multiple drugs to enhance the effectiveness of complex cancer treatments.
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Affiliation(s)
- Baljinder Singh
- Department of Convergence Science, Sahmyook University, Seoul 01795, Korea; (B.S.); (N.S.); (J.K.)
| | - Nutan Shukla
- Department of Convergence Science, Sahmyook University, Seoul 01795, Korea; (B.S.); (N.S.); (J.K.)
| | - Junkee Kim
- Department of Convergence Science, Sahmyook University, Seoul 01795, Korea; (B.S.); (N.S.); (J.K.)
| | - Kibeom Kim
- Convergence Research Center, Nanobiomaterials Institute, Sahmyook University, Seoul 01795, Korea;
| | - Myoung-Hwan Park
- Department of Convergence Science, Sahmyook University, Seoul 01795, Korea; (B.S.); (N.S.); (J.K.)
- Convergence Research Center, Nanobiomaterials Institute, Sahmyook University, Seoul 01795, Korea;
- Department of Chemistry and Life Science, Sahmyook University, Seoul 01795, Korea
- N to B Co., Ltd., Business Incubator Center, Hwarang-ro, Nowon-gu, Seoul 01795, Korea
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11
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Dey S, Chatterjee S, Patel A, Pradhan N, Srivastava D, Patra N, Bhattacharyya A, Manna D. Photoresponsive transformation from spherical to nanotubular assemblies: anticancer drug delivery using macrocyclic cationic gemini amphiphiles. Chem Commun (Camb) 2021; 57:4646-4649. [PMID: 33881081 DOI: 10.1039/d1cc01468d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We developed NIR-light-responsive macrocyclic cationic gemini amphiphiles, one of which displayed various favorable properties of lipids. The NIR-light-mediated cleavage of the strained dioxacycloundecine ring led to the conversion of the spherical to a nanotubular self-assembly in the aqueous medium. This photo-mediated transformation from the spherical to nanotubular self-assembly resulted in the release of encapsulated hydrophobic anticancer drug molecule doxorubicin (Dox) in a controlled manner. The potent cationic gemini amphiphile also displayed lower cytotoxicity and efficient NIR-light-mediated Dox release efficacy to cancerous cells.
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Affiliation(s)
- Subhasis Dey
- Indian Institute of Technology Guwahati, Chemistry, Guwahati, Assam, India.
| | | | - Anjali Patel
- Indian Institute of Technology Guwahati, Centre for the Environment, Guwahati, Assam, India
| | - Nirmalya Pradhan
- Indian Institute of Technology Guwahati, Chemistry, Guwahati, Assam, India.
| | - Diship Srivastava
- Indian Institute of Technology (Indian School of Mines) Dhanbad, Chemistry, Dhanbad, Jharkhand, India
| | - Niladri Patra
- Indian Institute of Technology (Indian School of Mines) Dhanbad, Chemistry, Dhanbad, Jharkhand, India
| | | | - Debasis Manna
- Indian Institute of Technology Guwahati, Chemistry, Guwahati, Assam, India. and Indian Institute of Technology Guwahati, Centre for the Environment, Guwahati, Assam, India
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12
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Patel A, Dey S, Shokeen K, Karpiński TM, Sivaprakasam S, Kumar S, Manna D. Sulfonium-based liposome-encapsulated antibiotics deliver a synergistic antibacterial activity. RSC Med Chem 2021; 12:1005-1015. [PMID: 34223166 PMCID: PMC8221259 DOI: 10.1039/d1md00091h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/01/2021] [Indexed: 12/29/2022] Open
Abstract
The devastating antibacterial infections, coupled with their antibiotic resistance abilities, emphasize the need for effective antibacterial therapeutics. In this prospect, liposomal delivery systems have been employed in improving the efficacy of the antibacterial agents. The liposome-based antibiotics enhance the therapeutic potential of the new or existing antibiotics and reduce their adverse effects. The current study describes the development of sulfonium-based antibacterial lipids that demonstrate the delivery of existing antibiotics. The presence of cationic sulfonium moieties and inherent membrane targeting abilities of the lipids could help reduce the antibiotic resistance abilities of the bacteria and deliver the antibiotics to remove the infectious pathogens electively. The transmission electron microscopic images and dynamic light scattering analyses revealed the liposome formation abilities of the sulfonium-based amphiphilic compounds in the aqueous medium. The effectiveness of the compounds was tested against the Gram-negative and Gram-positive bacterial strains. The viability of the bacterial cells was remarkably reduced in the presence of the compounds. The sulfonium-based compounds with pyridinium moiety and long hydrocarbon chains showed the most potent antibacterial activities among the tested compounds. Mechanistic studies revealed the membrane-targeted bactericidal activities of the compounds. The potent compound also showed tetracycline and amoxicillin encapsulation and sustained release profiles in the physiologically relevant medium. The tetracycline and amoxicillin-encapsulated lipid showed much higher antibacterial activities than the free antibiotics at similar concentrations, emphasizing the usefulness of the synergistic effect of sulfonium-based lipid and the antibiotics, signifying that the sulfonium lipid penetrated the bacterial membrane and increased the cellular uptake of the antibiotics. The potent lipid also showed therapeutic potential, as it is less toxic to mammalian cells (like HeLa and HaCaT cells) at concentrations higher than their minimum inhibitory concentration values against S. aureus, E. coli, and MRSA. Hence, the sulfonium-based lipid exemplifies a promising framework for assimilating various warheads, and provides a potent antibacterial material.
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Affiliation(s)
- Anjali Patel
- Indian Institute of Technology Guwahati, Centre for the Environment Guwahati Assam India
| | - Subhasis Dey
- Biological Chemistry Laboratory, Indian Institute of Technology Guwahati, Chemistry Guwahati Assam India
| | - Kamal Shokeen
- Indian Institute of Technology Guwahati, Biosciences and Bioengineering Guwahati Assam India
| | - Tomasz M Karpiński
- Department of Medical Microbiology, Poznań University of Medical Sciences Wieniawskiego Poznań Poland
| | | | - Sachin Kumar
- Indian Institute of Technology Guwahati, Biosciences and Bioengineering Guwahati Assam India
| | - Debasis Manna
- Indian Institute of Technology Guwahati, Centre for the Environment Guwahati Assam India
- Biological Chemistry Laboratory, Indian Institute of Technology Guwahati, Chemistry Guwahati Assam India
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13
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Das S, Biswas O, Akhtar N, Patel A, Manna D. Multi-stimuli controlled release of a transmembrane chloride ion carrier from a sulfonium-linked procarrier. Org Biomol Chem 2020; 18:9246-9252. [PMID: 33150918 DOI: 10.1039/d0ob00938e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In recent times, anion transporters have received substantial consideration due to their ability to disrupt the ionic equilibrium across membrane bilayers. While numerous Cl- ion transporters were developed for channelopathies, unfortunately, poor aqueous solubility precluded their bioapplicability. Herein, we demonstrate the development of a multi-stimuli activatable anion transport approach to induce regulated transport of Cl- ions across membranes under specific conditions. The sulfonium-based procarrier was initially inactive, but the transmembrane transport of Cl- ions was activated in the presence of stimuli such as glutathione (GSH), reactive oxygen species (ROS) and light. The release of the hydrophobic anionophore from the aqueous-soluble procarrier under specific conditions leads to the successful transport of Cl- ions. Under physiological conditions, these anion carriers follow an antiport exchange mechanism to transport Cl- ions across lipid bilayers. Such multi-stimuli activatable procarriers have great potential to combat various types of channelopathies, including cancer, cystic fibrosis, kidney stones, myotonia, and others.
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Affiliation(s)
- Sribash Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Oindrila Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Nasim Akhtar
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Anjali Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
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14
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Lou J, Best MD. Strategies for altering lipid self-assembly to trigger liposome cargo release. Chem Phys Lipids 2020; 232:104966. [PMID: 32888913 DOI: 10.1016/j.chemphyslip.2020.104966] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/18/2020] [Accepted: 08/28/2020] [Indexed: 01/21/2023]
Abstract
While liposomes have proven to be effective drug delivery nanocarriers, their therapeutic attributes could be improved through the development of clinically viable triggered release strategies in which encapsulated drug contents could be selectively released at the sites of diseased cells. As such, a significant amount of research has been reported involving the development of stimuli-responsive liposomes and a broad range of strategies have been explored for driving content release. These have included the introduction of trigger groups at either the lipid headgroup or within the acyl chains that alter lipid self-assembly properties of known lipids as well as the rational design of lipid analogs programed to undergo conformational changes induced by events such as binding interactions. This review article describes advances in the design of stimuli-responsive liposome strategies with an eye towards emerging trends in the field.
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Affiliation(s)
- Jinchao Lou
- Department of Chemistry, University of Tennessee, 1420 Circle Dr, Knoxville, TN, 37996, USA
| | - Michael D Best
- Department of Chemistry, University of Tennessee, 1420 Circle Dr, Knoxville, TN, 37996, USA.
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15
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Akhtar N, Biswas O, Manna D. Biological applications of synthetic anion transporters. Chem Commun (Camb) 2020; 56:14137-14153. [DOI: 10.1039/d0cc05489e] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transmembrane transport of anions by small molecules has recently been used to reduce the viability of cancer cells and fight against antibiotic-resistant and clinically relevant bacterial strains.
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Affiliation(s)
- Nasim Akhtar
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Oindrila Biswas
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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